68763865 has 16 divisors (see below), whose sum is σ = 83666880. Its totient is φ = 54250560.

The previous prime is 68763857. The next prime is 68763887. The reversal of 68763865 is 56836786.

It is a happy number.

It is not a de Polignac number, because 68763865 - 2³ = 68763857 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181246 + ... + 181624.

It is an arithmetic number, because the mean of its divisors is an integer number (5229180).

Almost surely, 2^68763865 is an apocalyptic number.

It is an amenable number.

68763865 is a deficient number, since it is larger than the sum of its proper divisors (14903015).

68763865 is a wasteful number, since it uses less digits than its factorization.

68763865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792.

The product of its digits is 1451520, while the sum is 49.

The square root of 68763865 is about 8292.3980246971. The cubic root of 68763865 is about 409.6881725751.

The spelling of 68763865 in words is "sixty-eight million, seven hundred sixty-three thousand, eight hundred sixty-five".